Improvement in device foe oiling fast and loose pulleys



WiBIHAMVnIMILToN, or unicorns, MASSAGEUSETTS.4

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Iiirlioviinnr In DEVICE ron oILINe PAST AND LooSL PULLLYS.

dite dgrtnle nicht tu tetten Titten.' mimi :mt milking pint si tige snm,

'ro ALL WHoM im `MAY conocen;

` VBc it know-n that I, WILLIAM HAMILTON, of Chiccpee, Hampden county, Commonwealth of Massachusetts, have invented a new and useful Device for Oiling Fastvand Loose Pulleys; and I do hereby declare that the following is a full and clear description thereof, reference being had-to the accompanying drawings, and to the letters of reference marked thereon. Y In the drawings- Figure 1 is a side and partial sectional view`oi` my invention. lFigure-2, a detailed view cfa. part, and t v Figure 3 a view of the shaft in section with a part of my invention. p This inventiontconssts in a new andimprov'ed construction of fast and loose pulley-shafts, in connection with my oling-device already patented, October 2, 1866, whereby the pulleys may have their bearings oiled by one oil-cup; that is, the bearing entire of the loose pulley, and the bearing at one side of the fast pulley.

In order to accomplish this, I make my loose pulley A fast upon a sleeve, B, fitting over the shaft 0 at the bearing on the same Side as the pulley A. This sleeve works in the box D, and forms ofitseli' the bearing for this end of the main Shaft C. Around the sleeve B passes the chain a, from the oil-cup b, workinginta similar manner as is shown in my patent before mentioned. This oils the bearing of the sleeve B, but in order to get the' oil to the main shaft C inside, holes c c, Ste., are cut through the sleeve, at the part where the chain a comes over it. This admits the oil through into ahcllow left around the main shaft at d, by euttingrpr turning the latter down abthis point smaller than the diameter of the sleeve. New that I have accomplishedtlio objeetof oiling the main shaft, it becomes necessary, for the peculiar oils -I use, tht the oil should return tothe cup after having been used. That used upon the sleeve directly returns 'in' the semeA ymanner as is shown in my patent, but to get the oil back into the cup from the inside of the sleeve and around the shaft, I construct the sleeve in a peculiar'imanner, as I will now describe. .The loose pulley A is fastened directly upon a cylinder, c which 'may formpart o'f or be fastened ,upon the end of the sleeve B, around the shaft. This cylinder is hollow, and is connected with the-end of the sleeve by means of kneesff, itcr The object of this chamber in the cylinder is to conduct the oil that comes out of the end ofthe sleeve B back lto the oil-cup. The inotivepower for 'so forcing' the oil to make its circuit is the centrifugal force, and this ispplied by the following detail of construction in Vmy device: 4In every directionfwhich the oil 'is required to pass, the surfaces of the shaft, sleevefafnd cylinder increase in diameter. Thus when the oil falls thropgh Athe holes in the sleeve B beneath the chain, itdro'ps-upon the minimum dia-meter ofthe main shaft; itis then carried bythe centrifugal force each way from this point to the bearings at g and L; the one, g, at the end of the'shai't, and the other, L, at the end ofthe sleeve, within the cylinder'e. From the end at g it drops down into the trough z', as in my formercase, but at L it meets with arsudden enlargement of the shaft C, which then tapers more abruptly` the other way, and the oil is crowded to the edge of the enlarged portionj, from which it drops to the inside surface of the 'cylinder `e, which tapers also, enlarging as it is nearer the oil-cup, at'this point the end of the sleeve is also tapered in the Same direction, so that wherever the oil falls, it is conducted by centrifugal force towards the outer edge ofthe cylinder e, from which it drops into the trough z', and reaches the oil-cup.

In 3 is shown a. small device for conducting the escaped oil more perfectly back into the trough, from the main shaft. G is the Shaft, shown in cross-section. I-I is the end of the box, aud the end of the trodgh z', extending out alittle beyond it, as is shown ing. 1 at H. c is a tongue of spring-metal, fastened at tho lower end to thertrough,4 and having its other end pressing upon the surface of thc shaft at m. This serves to cnt the oil from passing further on the shaft, and renders its-conduct to the trough sure.

(Now having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1.' The sleeve B, with hollow cylinder c, constructed as shown, and arranged upon the shaft C, substan-' tially in the manner and for the purpose described.

2. In combination with the sleeve B, the shaft C, formed its sh stantially as set forth.

3. The tongue lc, when connected with` adrippiug-trough, e', for the purpose and own, with the taper and projection y', subin the manner shown.

, v WM. HAMILTON. Witnesses:

E. H. HYDE, OnARLusgfP. Dusar.- 

